How we cite our quotes: All quotations are from Harry Potter and the Half-Blood Prince.
Quote #7
HERMIONE: "To the Dark Lord: I know I will be dead long before you read this but I want you to know that it was I who discovered your secret. I have stolen the real Horcrux and intend to destroy it as soon as I can. I face death in the hope that when you meet your match, you will be mortal once more.—R.A.B."
Hmm, it seems that someone else has been helping out in the hunt for Horcruxes so that Voldemort can eventually be killed. But who? And was the Horcrux destroyed? So many questions.
Quote #8
DUMBLEDORE: Draco, years ago, I knew a boy who made all the wrong choices. Please let me help you.
DRACO: I don't want your help. Don't you understand? I have to do this. I have to kill you. Or he's going to kill me.
Draco starts out going along with Voldemort's plan because he's afraid that Voldemort will kill him, but when he's unable to go through with murdering Dumbledore, maybe he's decided that becoming a murderer is a fate worse than death. Or, in any case, it's something he's just not willing to do.